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Satg Head Bolts Induction Heater

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  • barkerwilliams
    started a topic Satg Head Bolts Induction Heater

    Satg Head Bolts Induction Heater

    I have to take the heads off a Stag which has been in place at least thirty years.

    I know there are lots of methods about, but I am considering using an induction heating coil before I even try with any force to remove the bolts.

    Any one used an induction heater on a Stag head bolt?
    Any tips, or why it will not work?

    I was planning to remove nuts and dose with Plus Gas a couple of times a day over perhaps three days before I make any serious efforts to remove the studs.

    Then heat to glowing with induction to try and crack free gently'ish, if no go then another plus gas and leave for 24 hours before heating to glowing and trying for real.

    Is that a viable plan?


    One day I will get to sort out my typing - particularly of "Stag"!

    Alan

  • wilf
    replied
    Is this the tool you were thinking of? https://www.youtube.com/watch?v=3ya8fxm89jk

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  • DJT
    replied
    Originally posted by mole42 View Post
    Buy the correct S.350 stud removing tool from Tony Hart - it's specified in the ROM - 12.29.12 para. 31 - and it allows you to use a big ring spanner to 'rock' the studs back and forth to help the crud let go.
    And then they snap off anyway...... I bought and used that tool to little effect. Even tried the jackhammer trick on the studs, combined with loads of penetrating fluid (not WD40), but only one loosened that way. Had to Jack the LH head off against the other and cut through the studs. Even with the heads off I couldn’t shift the remains of two of them from the head. The local firm who tidied up the heads for me got the remains out using their 20-tonne press! The threaded remains that stayed in the block undid very easily, so it was only electrolytic corrosion that was causing the studs to stick.
    I made and used a head pusher tool, but that is little use once the studs have snapped. Better to use it before that happens.

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  • mole42
    replied
    Buy the correct S.350 stud removing tool from Tony Hart - it's specified in the ROM - 12.29.12 para. 31 - and it allows you to use a big ring spanner to 'rock' the studs back and forth to help the crud let go.
    Last edited by mole42; 12th July 2019, 08:32.

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  • Phil S
    replied
    diesel is a good penetrate as well

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  • Alacrity
    replied
    Regarding anti seize (Plus Gas etc.) one of the best is a home mix of 50% transmission fluid & 50% acetone. Another hobby of mine is older speedboats & old Mercury outboards. Often the outboards are badly seized & I picked this tip up on a US forum, & its always worked well for me.

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  • stag8manod
    replied
    Hello Allan, Try searching YouTube there will be any number of articles on the subject.
    Cheers Ian A

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